Post type – oembed cache

Those entries are not from core WP, nor Yoast, AFAIK. WP normally creates embed code on the fly when an oembed URL is encountered. Do you have any sort of optimization plugin that could be the cause?

If you don’t know the responsible plugin, find it by selectively deactivating plugins. You’ll need to come up with a test that reliably invokes the action you wish to prevent. A new post with an oembed URL perhaps? Once you’ve found the responsible plugin, seek assistance through its dedicated support channel where its devs can better help you.

Thanks for your answer.

Thing is, when I uninstalled YOAST, I’m not having those problems. That’s why I wrote it, it was the ONLY thing, that triggered that kind of stuff. When it’s gone, everything goes to WP-postmeta

I’m unable to replicate your experience on a test site, either with or without Yoast. Your best course of action if it’s tied to Yoast being active is to file a bug report as had been recommended in your support topic over at the Yoast support forum.

Thank you – I already messaged there, and they told me, that was unique situation.

I was going to totally uninstall YOAST and then reinstall it to try and see.

Thought, maybe anyone here experienced that.

Thanks again for your attention.

Hey, I was finally able to replicate the _oembed meta entries you are experiencing. Yoast was not involved. I’m unsure why I previously did not see anything being added when inserting oembed links. I just stumbled upon some when checking something unrelated. I’ve not tested further, but it appears like you can use the “embed_cache_oembed_types” filter to alter behavior. Return an empty array to prevent caching of oembed content, or list only specific post types where caching is allowed.

There does not appear to be any ill effects from removing cached data from the DB, but I’d make a backup anyway before removal. I did find several redundant entries for one frequently edited page. If one were to maintain oembed caching, it may be reasonable to clean out old entries once in a while. Wp_cron could be setup to do so automatically.